Namura Standard Bore Top End Repair Kit Size A for Honda CR250R 1997-2001 66.4mm

Standard Bore Top End Repair Kit Size A for Honda

This top end rebuild kit includes all components needed for a standard bore piston replacement on Honda CR250R models from 1997 to 2001.

Overview

This top end repair kit from Namura is designed specifically for the Honda CR250R (1997-2001) with a standard 66.4mm bore. It includes a piston, rings, wrist pin, circlips, and gaskets to restore top-end performance. Whether rebuilding a motocross machine or refreshing a trail bike, this top end repair kit delivers reliable compression and power.

Built For Performance

• Includes Size A piston with 66.4mm diameter for standard bore
• High-strength aluminum alloy piston for reduced weight and improved heat dissipation
• Precision-ground rings ensure optimal seal and minimal blow-by
• Complete gasket set includes head gasket, base gasket, and exhaust gasket
• Designed to meet or exceed OEM specifications for Honda CR250R

Fits These Machines

• for Honda CR250R (1997-2001)

On-The-Job Use

• Top-end rebuild for Honda CR250R motocross bikes
• Restoring lost compression and power after hours of riding
• Preventative maintenance during annual engine service
• Replacing worn-out OEM components with a quality replacement

Specs At A Glance

Good To Know

Q: What is included in the top end repair kit? A: The kit contains a piston, piston rings, wrist pin, circlips, and all necessary gaskets for a complete top end rebuild.

Q: Is this kit for standard bore only? A: Yes, this is Size A (66.4mm) standard bore, not oversized; if your cylinder requires boring, select the appropriate oversize kit.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.